AN1241: Analytic 1241
Detects the redirection of syscall execution flow via modification of VDSO code stubs or GOT entries to load and execute a malicious shared object through mmap and ptrace.
Analyst context for executives and security teams
This analytic matters because it points to a Linux runtime-tampering behavior: syscall execution flow is redirected by modifying VDSO code stubs or GOT entries so a malicious shared object can be loaded and executed through mmap and ptrace. For leaders, the practical issue is whether Linux monitoring can see in-memory code manipulation and process tampering, not just files written to disk.
Executive priority
Prioritize this as a coverage-validation item for Linux systems where integrity of running processes is important to business continuity or incident containment. The object provides no tactic mapping or relationship context, so it should not drive standalone risk conclusions; it should drive questions about endpoint visibility, process-memory evidence, and whether SOC/IR teams can investigate suspected shared-object injection or syscall redirection on Linux.
Technical view
SOC and detection teams should validate whether Linux telemetry can reveal changes to VDSO code stubs, GOT entry modification, ptrace use, mmap activity associated with executable shared-object loading, and anomalous process memory mappings. Because the official detection field is not provided and no relationships are supplied, teams should treat AN1241 as a detection concept requiring local engineering, baselining, and false-positive testing rather than a ready-to-run rule.
Likely telemetry
- Linux process execution and parent-child process context
- ptrace-related activity or audit events where available
- mmap or memory-mapping telemetry, especially executable mappings
- Loaded shared object/library observations
- Process memory map evidence such as VDSO regions and mapped shared objects
Detection direction
- Confirm that Linux data sources can observe ptrace and memory-mapping behavior at sufficient fidelity for investigation.
- Validate whether monitoring can identify suspicious executable shared-object mappings that are not explained by normal application behavior.
- Assess whether VDSO or GOT modification can be detected directly, or whether the environment must rely on indirect signals such as anomalous ptrace plus unexpected mappings.
- Baseline legitimate debugging, profiling, instrumentation, and application-runtime behavior to reduce false positives.
- Document gaps clearly: the ATT&CK object supplies no official detection logic, no tactic mapping, and no relationship context.
Mitigation priorities
- Harden access to Linux systems and privileged process-manipulation capabilities so ptrace and similar process-tampering paths are limited to approved administrative use.
- Apply least privilege and operational controls around debugging, instrumentation, and production shell access.
- Maintain endpoint and audit logging coverage on Linux assets where process integrity matters.
- Use incident response procedures that preserve volatile evidence, including process memory maps and loaded library state, when this behavior is suspected.
- Treat this analytic as a prompt for control and telemetry validation rather than proof of compromise.
Analyst notes and limits
AN1241 is a MITRE ATT&CK detection analytic for Linux in enterprise-attack. Its description is specific to syscall-flow redirection through VDSO or GOT modification and malicious shared-object execution via mmap and ptrace. No official detection implementation, tactics, aliases, labels, or relationship context were supplied.
This take is limited to the supplied STIX fields and external reference. It does not assert active exploitation, attribution, prevalence, business impact, or existing detection coverage. Local Linux architecture, audit configuration, EDR capability, and normal application behavior are required to determine feasible detection and response value.
Analytic 1241
Detects the redirection of syscall execution flow via modification of VDSO code stubs or GOT entries to load and execute a malicious shared object through mmap and ptrace.
How security teams should use this page
Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.
All related ATT&CK context
No relationships are available in the current normalized data for this object.
Object version and sync metadata
The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates .
Imported snapshots across ATT&CK releases (1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.0 | Current bundle | 1922e6dd97fd… |
Mirrored ATT&CK source object
The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.
External references and citations
MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.
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[1]
mitre-attack AN1241Open source URL
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